def __init__(self, parent=None, fps=24, state=None):
"""
:param parent: parent Qt object
:param fps: frames per second (default 24)
:param state: GLState object (for shared states)
"""
self.camera = None
format = QtOpenGL.QGLFormat()
format.setDirectRendering(True)
format.setSampleBuffers(True)
self.state = state or GLState()
self.state.signal_state_change.connect(self.handle_state_change)
super(GLWidget, self).__init__(format, parent)
self.setAutoBufferSwap(True)
self.setMouseTracking(True)
self.setFocusPolicy(QtCore.Qt.StrongFocus)
self.setCursor(QtCore.Qt.OpenHandCursor)
# save the parent object
self._main = parent
# frames per second value
self.__time = 0
self.__frame = 0
self.__fps = fps
self.__playing = False
# various matrices and vectors
self.__bounds_default = imath.Box3d((-5, -5, -5), (5, 5, 5))
self.__bounds = None
self.__radius = 5.0
self.__last_pok = False
self.__last_p2d = QtCore.QPoint()
self.__last_p3d = [1.0, 0.0, 0.0]
self.__rotating = False
# for animated scenes
self.timer = QtCore.QTimer(self)
# default camera
self.camera = GLCamera(self)
self.state.add_camera(self.camera)
self.frame()
def handle_camera_action(self, action):
"""
New camera menu handler.
"""
action_name = str(action.text().toAscii())
if action_name == "New":
text, ok = QtGui.QInputDialog.getText(self, "New Camera",
"Camera Name:",
QtGui.QLineEdit.Normal)
if ok and not text.isEmpty():
name = str(text.toAscii())
camera = GLCamera(self, name)
self.add_camera(camera)
self.set_camera(name)
def __init__(self, parent=None, fps=24, state=None):
"""
:param parent: parent Qt object
:param fps: frames per second (default 24)
:param state: GLState object (for shared states)
"""
self.camera = None
format = QtOpenGL.QGLFormat()
format.setDirectRendering(True)
format.setSampleBuffers(True)
self.state = state or GLState()
self.state.signal_state_change.connect(self.handle_state_change)
super(GLWidget, self).__init__(format, parent)
self.setAutoBufferSwap(True)
self.setMouseTracking(True)
self.setFocusPolicy(QtCore.Qt.StrongFocus)
self.setCursor(QtCore.Qt.OpenHandCursor)
# save the parent object
self._main = parent
# frames per second value
self.__time = 0
self.__frame = 0
self.__fps = fps
self.__playing = False
# various matrices and vectors
self.__bounds_default = imath.Box3d((-5,-5,-5), (5,5,5))
self.__bounds = None
self.__radius = 5.0
self.__last_pok = False
self.__last_p2d = QtCore.QPoint()
self.__last_p3d = [1.0, 0.0, 0.0]
self.__rotating = False
# for animated scenes
self.timer = QtCore.QTimer(self)
# default camera
self.camera = GLCamera(self)
self.state.add_camera(self.camera)
self.frame()
class GLWidget(QtOpenGL.QGLWidget):
"""
AbcView OpenGL Widget.
Basic usage ::
>>> viewer = GLWidget()
>>> viewer.add_file("file.abc")
"""
signal_scene_opened = QtCore.pyqtSignal(GLScene)
signal_scene_removed = QtCore.pyqtSignal(GLScene)
signal_scene_error = QtCore.pyqtSignal(str)
signal_scene_drawn = QtCore.pyqtSignal()
signal_play_fwd = QtCore.pyqtSignal()
signal_play_stop = QtCore.pyqtSignal()
signal_current_time = QtCore.pyqtSignal(float)
signal_current_frame = QtCore.pyqtSignal(int)
signal_set_camera = QtCore.pyqtSignal(GLCamera)
signal_new_camera = QtCore.pyqtSignal(GLCamera)
signal_camera_updated = QtCore.pyqtSignal(GLCamera)
def __init__(self, parent=None, fps=24, state=None):
"""
:param parent: parent Qt object
:param fps: frames per second (default 24)
:param state: GLState object (for shared states)
"""
self.camera = None
format = QtOpenGL.QGLFormat()
format.setDirectRendering(True)
format.setSampleBuffers(True)
self.state = state or GLState()
self.state.signal_state_change.connect(self.handle_state_change)
super(GLWidget, self).__init__(format, parent)
self.setAutoBufferSwap(True)
self.setMouseTracking(True)
self.setFocusPolicy(QtCore.Qt.StrongFocus)
self.setCursor(QtCore.Qt.OpenHandCursor)
# save the parent object
self._main = parent
# frames per second value
self.__time = 0
self.__frame = 0
self.__fps = fps
self.__playing = False
# various matrices and vectors
self.__bounds_default = imath.Box3d((-5,-5,-5), (5,5,5))
self.__bounds = None
self.__radius = 5.0
self.__last_pok = False
self.__last_p2d = QtCore.QPoint()
self.__last_p3d = [1.0, 0.0, 0.0]
self.__rotating = False
# for animated scenes
self.timer = QtCore.QTimer(self)
# default camera
self.camera = GLCamera(self)
self.state.add_camera(self.camera)
self.frame()
def clear(self):
self.frame()
self.updateGL()
def add_file(self, filepath):
self.add_scene(GLScene(filepath))
def add_scene(self, scene):
"""
Adds a scene to the viewer session.
:param scene: GLScene object
"""
self.state.add_scene(scene)
self.signal_scene_opened.emit(scene)
self.updateGL()
def remove_scene(self, scene):
"""
Removes a given GLScene object from the master scene.
:param scene: GLScene to remove.
"""
self.state.remove_scene(scene)
self.signal_scene_removed.emit(scene)
self.updateGL()
def add_camera(self, camera):
"""
:param camera: GLCamera object
"""
log.debug("GLWidget.add_camera: %s" % camera)
self.state.add_camera(camera)
self.signal_new_camera.emit(camera)
def remove_camera(self, camera):
"""
:param camera: GLCamera object to remove
"""
self.state.remove_camera(camera)
@update_camera
def set_camera(self, camera="interactive"):
"""
Sets the scene camera from a given camera name string
:param camera: Name of camera or GLCamera object
"""
if type(camera) in [str, unicode]:
if "/" in camera:
camera = os.path.split("/")[-1]
if camera not in [cam.name for cam in self.state.cameras]:
log.warn("camera not found: %s" % camera)
return
self.camera = self.state.get_camera_by_name(camera)
else:
self.camera = camera
self.resizeGL(self.width(), self.height())
self.signal_set_camera.emit(self.camera)
def _get_time(self):
return self.__time
def _set_time(self, new_time):
self.__time = new_time
self.__frame = new_time * self.fps
for scene in self.state.scenes:
if scene.visible:
scene.set_time(new_time)
if self.camera and self.camera.auto_frame:
self.frame()
self.signal_current_time.emit(new_time)
self.signal_current_frame.emit(int(round(new_time * self.fps)))
self.updateGL()
current_time = property(_get_time, _set_time, doc="set/get current time")
def _get_frame(self):
return self.__frame
def _set_frame(self, frame):
if frame > self.frame_range()[1]:
frame = self.frame_range()[0]
elif frame < self.frame_range()[0]:
frame = self.frame_range()[1]
frame = frame / float(self.fps)
self.current_time = frame
current_frame = property(_get_frame, _set_frame, doc="set/get current frame")
def is_playing(self):
return self.__playing
def play(self):
"""
plays loaded scenes by activating timer and setting callback
"""
self.timer.setInterval(1.0 / (float(self.fps)))
self.connect(self.timer, QtCore.SIGNAL("timeout ()"), self._play_fwd_cb)
self.timer.start()
self.signal_play_fwd.emit()
def _play_fwd_cb(self):
"""
play callback, sets current time for all scenes
"""
self.__playing = True
min_time, max_time = self.time_range()
self.current_time += 1.0 / float(self.fps)
if self.current_time > max_time:
self.current_time = min_time
def stop(self):
"""
stops scene playback
"""
self.__playing = False
self.disconnect(self.timer, QtCore.SIGNAL("timeout ()"), self._play_fwd_cb)
self.connect(self.timer, QtCore.SIGNAL("timeout ()"), self._play_stop_cb)
self.updateGL()
def _play_stop_cb(self):
self.signal_play_stop.emit()
def _get_fps(self):
return self.__fps
def _set_fps(self, fps):
self.__fps = fps
fps = property(_get_fps, _set_fps, doc="frames per second value")
def aspect_ratio(self):
"""
Returns current aspect ration of the viewer.
"""
return self.width() / float(self.height())
def time_range(self):
"""
Returns total time range in seconds.
"""
min = None
max = None
if self.state.scenes:
for scene in self.state.scenes:
if min is None or scene.min_time() < min:
min = scene.min_time()
if max is None or scene.max_time() > max:
max = scene.max_time()
else:
min, max = 0, 0
return (min, max)
def frame_range(self):
"""
Returns total frame range.
"""
(min, max) = self.time_range()
return (min * self.fps, max * self.fps)
def _get_bounds(self):
#TODO: ugly code needs refactor
if self.state.scenes:
bounds = None
for scene in self.state.scenes:
if not scene.loaded:
continue
if bounds is None or scene.bounds().max() > bounds.max():
bounds = scene.bounds()
min = bounds.min()
max = bounds.max()
if scene.properties.get("translate"):
max = max * imath.V3d(*scene.translate)
min = min * imath.V3d(*scene.translate)
if scene.properties.get("scale"):
max = max * imath.V3d(*scene.scale)
min = min * imath.V3d(*scene.scale)
bounds = imath.Box3d(min, max)
if bounds is None:
return self.__bounds_default
self.__bounds = bounds
return self.__bounds
else:
return self.__bounds_default
def _set_bounds(self, bounds):
self.__bounds = bounds
bounds = property(_get_bounds, _set_bounds, doc="scene bounding box")
@update_camera
def frame(self, bounds=None):
"""
Frames the viewer's active camera on the bounds of the currently
loaded and visible scenes.
:param bounds: imath.Box3d bounds object.
"""
if bounds is None:
bounds = self.bounds
self.camera.frame(bounds)
def split(self, orientation=QtCore.Qt.Vertical,
wipe=False):
"""
Splist the viewer into two separate widgets according
to the orientation param.
"""
if not self.parent():
return
item = self.parent().layout().itemAt(0)
splitter = GLSplitter(orientation, wipe)
self.parent().layout().addWidget(splitter)
group1 = QtGui.QGroupBox()
group1.setLayout(QtGui.QVBoxLayout())
group1.layout().setSpacing(0)
group1.layout().setMargin(0)
group1.layout().addWidget(item.widget())
group2 = QtGui.QGroupBox()
group2.setLayout(QtGui.QVBoxLayout())
group2.layout().setSpacing(0)
group2.layout().setMargin(0)
new_viewer = GLWidget(self._main, state=self.state)
group2.layout().addWidget(new_viewer)
splitter.addWidget(group1)
splitter.addWidget(group2)
def split_vert(self):
"""
Splits the viewer vertically.
"""
self.split(QtCore.Qt.Horizontal)
def split_horz(self):
"""
Splits the viewer horizontally.
"""
self.split(QtCore.Qt.Vertical)
#def wipe_horz(self):
# self.split(QtCore.Qt.Horizontal, wipe=True)
#TODO: support viewer pop-outs
def unsplit(self):
"""
Unsplits and deletes current viewer
"""
if not self.parent():
return
splitter = self.parent().parent()
# should be exactly two groups per splitter
index = splitter.indexOf(self.parent())
index_other = 1 * (1 - index)
group = splitter.widget(index)
group_other = splitter.widget(index_other)
# disconnect signals
#self.state.signal_state_change.disconnect()
splitter.parent().layout().addWidget(group_other)
splitter.parent().layout().removeWidget(splitter)
# cleanup widgets
del splitter
del group
del self
def _paint_normals(self):
glColor3f(1, 1, 1)
def _draw(obj):
md = obj.getMetaData()
if alembic.AbcGeom.IPolyMesh.matches(md) or alembic.AbcGeom.ISubD.matches(md):
meshObj = alembic.AbcGeom.IPolyMesh(obj.getParent(), obj.getName())
mesh = meshObj.getSchema()
xf = get_final_matrix(meshObj)
iss = alembic.Abc.ISampleSelector(0)
facesProp = mesh.getFaceIndicesProperty()
if not facesProp.valid():
return
pointsProp = mesh.getPositionsProperty()
if not pointsProp.valid():
return
normalsProp = mesh.getNormalsParam().getValueProperty()
if not normalsProp.valid():
return
boundsProp = mesh.getSelfBoundsProperty()
if not boundsProp.valid():
return
faces = facesProp.getValue(iss)
points = pointsProp.getValue(iss)
normals = normalsProp.getValue(iss)
bounds = boundsProp.getValue(iss)
for i, fi in enumerate(faces):
p = points[fi] * xf
n = normals[i]
v = p + n
glBegin(GL_LINES)
glColor3f(0, 1, 0)
glVertex3f(p[0], p[1], p[2])
glVertex3f(v[0], v[1], v[2])
glEnd()
for child in obj.children:
try:
_draw(child)
except Exception, e:
log.warn("unhandled exception: %s" % e)
for scene in self.state.scenes:
_draw(scene.top())
class GLWidget(QtOpenGL.QGLWidget):
"""
AbcView OpenGL Widget.
Basic usage ::
>>> viewer = GLWidget()
>>> viewer.add_file("file.abc")
"""
signal_scene_opened = QtCore.pyqtSignal(GLScene)
signal_scene_removed = QtCore.pyqtSignal(GLScene)
signal_scene_error = QtCore.pyqtSignal(str)
signal_scene_drawn = QtCore.pyqtSignal()
signal_play_fwd = QtCore.pyqtSignal()
signal_play_stop = QtCore.pyqtSignal()
signal_current_time = QtCore.pyqtSignal(float)
signal_current_frame = QtCore.pyqtSignal(int)
signal_set_camera = QtCore.pyqtSignal(GLCamera)
signal_new_camera = QtCore.pyqtSignal(GLCamera)
signal_camera_updated = QtCore.pyqtSignal(GLCamera)
def __init__(self, parent=None, fps=24, state=None):
"""
:param parent: parent Qt object
:param fps: frames per second (default 24)
:param state: GLState object (for shared states)
"""
self.camera = None
format = QtOpenGL.QGLFormat()
format.setDirectRendering(True)
format.setSampleBuffers(True)
self.state = state or GLState()
self.state.signal_state_change.connect(self.handle_state_change)
super(GLWidget, self).__init__(format, parent)
self.setAutoBufferSwap(True)
self.setMouseTracking(True)
self.setFocusPolicy(QtCore.Qt.StrongFocus)
self.setCursor(QtCore.Qt.OpenHandCursor)
# save the parent object
self._main = parent
# frames per second value
self.__time = 0
self.__frame = 0
self.__fps = fps
self.__playing = False
# various matrices and vectors
self.__bounds_default = imath.Box3d((-5, -5, -5), (5, 5, 5))
self.__bounds = None
self.__radius = 5.0
self.__last_pok = False
self.__last_p2d = QtCore.QPoint()
self.__last_p3d = [1.0, 0.0, 0.0]
self.__rotating = False
# for animated scenes
self.timer = QtCore.QTimer(self)
# default camera
self.camera = GLCamera(self)
self.state.add_camera(self.camera)
self.frame()
def clear(self):
self.frame()
self.updateGL()
def add_file(self, filepath):
self.add_scene(GLScene(filepath))
def add_scene(self, scene):
"""
Adds a scene to the viewer session.
:param scene: GLScene object
"""
self.state.add_scene(scene)
self.signal_scene_opened.emit(scene)
self.updateGL()
def remove_scene(self, scene):
"""
Removes a given GLScene object from the master scene.
:param scene: GLScene to remove.
"""
self.state.remove_scene(scene)
self.signal_scene_removed.emit(scene)
self.updateGL()
def add_camera(self, camera):
"""
:param camera: GLCamera object
"""
log.debug("GLWidget.add_camera: %s" % camera)
self.state.add_camera(camera)
self.signal_new_camera.emit(camera)
def remove_camera(self, camera):
"""
:param camera: GLCamera object to remove
"""
self.state.remove_camera(camera)
@update_camera
def set_camera(self, camera="interactive"):
"""
Sets the scene camera from a given camera name string
:param camera: Name of camera or GLCamera object
"""
if type(camera) in [str, unicode]:
if "/" in camera:
camera = os.path.split("/")[-1]
if camera not in [cam.name for cam in self.state.cameras]:
log.warn("camera not found: %s" % camera)
return
self.camera = self.state.get_camera_by_name(camera)
else:
self.camera = camera
self.resizeGL(self.width(), self.height())
self.signal_set_camera.emit(self.camera)
def _get_time(self):
return self.__time
def _set_time(self, new_time):
self.__time = new_time
self.__frame = new_time * self.fps
for scene in self.state.scenes:
if scene.visible:
scene.set_time(new_time)
if self.camera and self.camera.auto_frame:
self.frame()
self.signal_current_time.emit(new_time)
self.signal_current_frame.emit(int(round(new_time * self.fps)))
self.updateGL()
current_time = property(_get_time, _set_time, doc="set/get current time")
def _get_frame(self):
return self.__frame
def _set_frame(self, frame):
if frame > self.frame_range()[1]:
frame = self.frame_range()[0]
elif frame < self.frame_range()[0]:
frame = self.frame_range()[1]
frame = frame / float(self.fps)
self.current_time = frame
current_frame = property(_get_frame,
_set_frame,
doc="set/get current frame")
def is_playing(self):
return self.__playing
def play(self):
"""
plays loaded scenes by activating timer and setting callback
"""
self.timer.setInterval(1.0 / (float(self.fps)))
self.connect(self.timer, QtCore.SIGNAL("timeout ()"),
self._play_fwd_cb)
self.timer.start()
self.signal_play_fwd.emit()
def _play_fwd_cb(self):
"""
play callback, sets current time for all scenes
"""
self.__playing = True
min_time, max_time = self.time_range()
self.current_time += 1.0 / float(self.fps)
if self.current_time > max_time:
self.current_time = min_time
def stop(self):
"""
stops scene playback
"""
self.__playing = False
self.disconnect(self.timer, QtCore.SIGNAL("timeout ()"),
self._play_fwd_cb)
self.connect(self.timer, QtCore.SIGNAL("timeout ()"),
self._play_stop_cb)
self.updateGL()
def _play_stop_cb(self):
self.signal_play_stop.emit()
def _get_fps(self):
return self.__fps
def _set_fps(self, fps):
self.__fps = fps
fps = property(_get_fps, _set_fps, doc="frames per second value")
def aspect_ratio(self):
"""
Returns current aspect ration of the viewer.
"""
return self.width() / float(self.height())
def time_range(self):
"""
Returns total time range in seconds.
"""
min = None
max = None
if self.state.scenes:
for scene in self.state.scenes:
if min is None or scene.min_time() < min:
min = scene.min_time()
if max is None or scene.max_time() > max:
max = scene.max_time()
else:
min, max = 0, 0
return (min, max)
def frame_range(self):
"""
Returns total frame range.
"""
(min, max) = self.time_range()
return (min * self.fps, max * self.fps)
def _get_bounds(self):
#TODO: ugly code needs refactor
if self.state.scenes:
bounds = None
for scene in self.state.scenes:
if not scene.loaded:
continue
if bounds is None or scene.bounds().max() > bounds.max():
bounds = scene.bounds()
min = bounds.min()
max = bounds.max()
if scene.properties.get("translate"):
max = max * imath.V3d(*scene.translate)
min = min * imath.V3d(*scene.translate)
if scene.properties.get("scale"):
max = max * imath.V3d(*scene.scale)
min = min * imath.V3d(*scene.scale)
bounds = imath.Box3d(min, max)
if bounds is None:
return self.__bounds_default
self.__bounds = bounds
return self.__bounds
else:
return self.__bounds_default
def _set_bounds(self, bounds):
self.__bounds = bounds
bounds = property(_get_bounds, _set_bounds, doc="scene bounding box")
@update_camera
def frame(self, bounds=None):
"""
Frames the viewer's active camera on the bounds of the currently
loaded and visible scenes.
:param bounds: imath.Box3d bounds object.
"""
if bounds is None:
bounds = self.bounds
self.camera.frame(bounds)
def split(self, orientation=QtCore.Qt.Vertical, wipe=False):
"""
Splist the viewer into two separate widgets according
to the orientation param.
"""
if not self.parent():
return
item = self.parent().layout().itemAt(0)
splitter = GLSplitter(orientation, wipe)
self.parent().layout().addWidget(splitter)
group1 = QtGui.QGroupBox()
group1.setLayout(QtGui.QVBoxLayout())
group1.layout().setSpacing(0)
group1.layout().setMargin(0)
group1.layout().addWidget(item.widget())
group2 = QtGui.QGroupBox()
group2.setLayout(QtGui.QVBoxLayout())
group2.layout().setSpacing(0)
group2.layout().setMargin(0)
new_viewer = GLWidget(self._main, state=self.state)
group2.layout().addWidget(new_viewer)
splitter.addWidget(group1)
splitter.addWidget(group2)
def split_vert(self):
"""
Splits the viewer vertically.
"""
self.split(QtCore.Qt.Horizontal)
def split_horz(self):
"""
Splits the viewer horizontally.
"""
self.split(QtCore.Qt.Vertical)
#def wipe_horz(self):
# self.split(QtCore.Qt.Horizontal, wipe=True)
#TODO: support viewer pop-outs
def unsplit(self):
"""
Unsplits and deletes current viewer
"""
if not self.parent():
return
splitter = self.parent().parent()
# should be exactly two groups per splitter
index = splitter.indexOf(self.parent())
index_other = 1 * (1 - index)
group = splitter.widget(index)
group_other = splitter.widget(index_other)
# disconnect signals
#self.state.signal_state_change.disconnect()
splitter.parent().layout().addWidget(group_other)
splitter.parent().layout().removeWidget(splitter)
# cleanup widgets
del splitter
del group
del self
def _paint_normals(self):
glColor3f(1, 1, 1)
def _draw(obj):
md = obj.getMetaData()
if alembic.AbcGeom.IPolyMesh.matches(
md) or alembic.AbcGeom.ISubD.matches(md):
meshObj = alembic.AbcGeom.IPolyMesh(obj.getParent(),
obj.getName())
mesh = meshObj.getSchema()
xf = get_final_matrix(meshObj)
iss = alembic.Abc.ISampleSelector(0)
facesProp = mesh.getFaceIndicesProperty()
if not facesProp.valid():
return
pointsProp = mesh.getPositionsProperty()
if not pointsProp.valid():
return
normalsProp = mesh.getNormalsParam().getValueProperty()
if not normalsProp.valid():
return
boundsProp = mesh.getSelfBoundsProperty()
if not boundsProp.valid():
return
faces = facesProp.getValue(iss)
points = pointsProp.getValue(iss)
normals = normalsProp.getValue(iss)
bounds = boundsProp.getValue(iss)
for i, fi in enumerate(faces):
p = points[fi] * xf
n = normals[i]
v = p + n
glBegin(GL_LINES)
glColor3f(0, 1, 0)
glVertex3f(p[0], p[1], p[2])
glVertex3f(v[0], v[1], v[2])
glEnd()
for child in obj.children:
try:
_draw(child)
except Exception, e:
log.warn("unhandled exception: %s" % e)
for scene in self.state.scenes:
_draw(scene.top())